Nissan Murano. Manual — part 809
HAC-10
< BASIC INSPECTION >
[WITHOUT 7 INCH DISPLAY]
INSPECTION AND ADJUSTMENT
9.
CHECK LH/RH INDEPENDENT TEMPERATURE ADJUSTMENT FUNCTION
1.
Press the DUAL switch, and then check that “DUAL” is shown on the display.
2.
Operate the temperature control switch (driver side). Check that the discharge air temperature (driver
side) changes.
3.
Operate the temperature control switch (passenger side). Check that the discharge air temperature (pas-
senger side) changes.
4.
Press the DUAL switch, and then check that the temperature setting (LH/RH) is unified to the driver side
temperature setting.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Refer to
HAC-108, "Diagnosis Chart By Symptom"
and perform the appropriate diagnosis.
10.
CHECK AUTO MODE
1.
Press the AUTO switch, and then check that “AUTO” is shown on the display.
2.
Operate the temperature control switch (driver side). Check that the fan speed or outlet changes (the dis-
charge air temperature or fan speed varies depending on the ambient temperature, in-vehicle tempera-
ture, and temperature setting).
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Refer to
HAC-108, "Diagnosis Chart By Symptom"
and perform the appropriate diagnosis.
Temperature Setting Trimmer
INFOID:0000000009722026
Description
If the temperature felt by the customer is different than the air flow temperature controlled by the temperature
setting, the auto amplifier control temperature can be adjusted to compensate for the temperature setting.
How to set
Using CONSULT, perform “TEMP SET CORRECT” on “WORK SUPPORT” of HVAC.
NOTE:
• When the temperature setting is set to 25.0
°
C (77
°
F) and
−
3.0
°
C (
−
6
°
F), the temperature controlled by auto amp is 25.0
°
C (77
°
F)
−
3.0
°
C (6
°
F) = 22.0
°
C (71
°
F) and the temperature becomes lower than the temperature setting.
• When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10V or less, the setting of the
difference between the temperature setting and control temperature may be cancelled.
Foot Position Setting Trimmer
INFOID:0000000009722027
Description
In the FOOT mode, the air blowing to the DEF can be turned ON/OFF.
Work support items
Display (
°
F)
Display (
°
C)
TEMP SET CORRECT
6
3.0
5
2.5
4
2.0
3
1.5
2
1.0
1
0.5
0 (initial status)
0 (initial status)
−
1
−
0.5
−
2
−
1.0
−
3
−
1.5
−
4
−
2.0
−
5
−
2.5
−
6
−
3.0
INSPECTION AND ADJUSTMENT
HAC-11
< BASIC INSPECTION >
[WITHOUT 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
How to set
Using CONSULT, perform “BLOW SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10V
or less, the setting of the discharge air mix ratio in FOOT mode may be cancelled.
Inlet Port Memory Function (FRE)
INFOID:0000000009722028
Description
• If the ignition switch is turned to the OFF position while the FRE switch is set to ON (fresh air intake), “Per-
form the memory” or “Do not perform the memory” of the FRE switch ON (fresh air intake) condition can be
selected.
• If “Perform the memory” was set, the FRE switch will be ON (fresh air intake) when turning the ignition switch
to the ON position again.
• If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-
tion switch to the ON position again.
How to set
Using CONSULT, perform “FRE MEMORY SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V or less, the setting of the
FRE switch memory function may be cancelled.
Inlet Port Memory Function (REC)
INFOID:0000000009722029
Description
• If the ignition switch is turned to the OFF position while the REC switch is set to ON (recirculation), “Perform
the memory” or “Do not perform the memory” of the REC switch ON (recirculation) condition can be
selected.
• If “Perform the memory” was set, the REC switch will be ON (recirculation) when turning the ignition switch
to the ON position again.
• If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-
tion switch to the ON position again.
How to set
Using CONSULT, perform “REC MEMORY SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 or less, the setting of the
REC switch memory function may be cancelled.
Work support items
Display
DEF door position
Auto control
Manual control
BLOW SET
Mode 1
OPEN
CLOSE
Mode 2 (initial status)
OPEN
OPEN
Mode 3
CLOSE
OPEN
Mode 4
CLOSE
CLOSE
Work support items
Display
Setting
FRE MEMORY SET
WITHOUT
Perform the memory of manual FRE
WITH (initial status)
Do not perform the memory of manual FRE (auto
control)
Work support items
Display
Setting
REC MEMORY SET
WITHOUT (initial status)
Perform the memory of manual REC
WITH
Do not perform the memory of manual REC (auto
control)
HAC-12
< SYSTEM DESCRIPTION >
[WITHOUT 7 INCH DISPLAY]
COMPRESSOR CONTROL FUNCTION
SYSTEM DESCRIPTION
COMPRESSOR CONTROL FUNCTION
Description
INFOID:0000000009722030
PRINCIPLE OF OPERATION
Compressor is not activated.
Functional circuit diagram
Functional initial inspection chart
×
: Applicable
CAN (1)
: A/C switch signal
: Blower fan motor switch signal
CAN (2)
: A/C Compressor request signal
RX, TX
: A/C switch signal
: Fan ON signal
: Defroster signal
JPIIA0483GB
Control unit
Diagnosis item
Location
A
B
C
D
A/C auto amp.
“HVAC”
Self-diagnosis
×
—
—
—
Data monitor
×
—
—
—
Active test
×
—
—
×
ECM
“ENGINE”
Self-diagnosis function
(CAN system diagnosis)
—
—
×
—
Data monitor
—
×
×
—
IPDM E/R
“IPDM E/R”
Self-diagnosis function
(CAN system diagnosis)
—
—
—
×
Data monitor
—
—
×
—
Auto active test
—
—
—
×
COMPRESSOR CONTROL FUNCTION
HAC-13
< SYSTEM DESCRIPTION >
[WITHOUT 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Component Part Location
INFOID:0000000009722031
ENGINE COMPARTMENT
PASSENGER COMPARTMENT
1.
Refrigerant pressure sensor
2.
Compressor (magnet clutch)
3.
Ambient sensor
JPIIA0607ZZ
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